1 /* 2 * This file is part of the select element renderer in WebCore. 3 * 4 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). 5 * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public License 18 * along with this library; see the file COPYING.LIB. If not, write to 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 * 22 */ 23 24 #ifndef RenderMenuList_h 25 #define RenderMenuList_h 26 27 #include "PopupMenu.h" 28 #include "PopupMenuClient.h" 29 #include "RenderFlexibleBox.h" 30 31 #if PLATFORM(MAC) 32 #define POPUP_MENU_PULLS_DOWN 0 33 #else 34 #define POPUP_MENU_PULLS_DOWN 1 35 #endif 36 37 namespace WebCore { 38 39 class RenderText; 40 41 #if ENABLE(NO_LISTBOX_RENDERING) 42 class RenderMenuList : public RenderFlexibleBox, private ListPopupMenuClient { 43 #else 44 class RenderMenuList : public RenderFlexibleBox, private PopupMenuClient { 45 #endif 46 47 public: 48 RenderMenuList(Element*); 49 virtual ~RenderMenuList(); 50 51 public: 52 bool popupIsVisible() const { return m_popupIsVisible; } 53 void showPopup(); 54 void hidePopup(); 55 56 void setOptionsChanged(bool changed) { m_optionsChanged = changed; } 57 58 void didSetSelectedIndex(); 59 60 String text() const; 61 62 private: 63 virtual bool isMenuList() const { return true; } 64 65 virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0); 66 virtual void removeChild(RenderObject*); 67 virtual bool createsAnonymousWrapper() const { return true; } 68 virtual bool canHaveChildren() const { return false; } 69 70 virtual void updateFromElement(); 71 72 virtual bool hasControlClip() const { return true; } 73 virtual IntRect controlClipRect(int tx, int ty) const; 74 75 virtual const char* renderName() const { return "RenderMenuList"; } 76 77 virtual void computePreferredLogicalWidths(); 78 79 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle); 80 81 virtual bool requiresForcedStyleRecalcPropagation() const { return true; } 82 83 // PopupMenuClient methods 84 virtual String itemText(unsigned listIndex) const; 85 virtual String itemLabel(unsigned listIndex) const; 86 virtual String itemIcon(unsigned listIndex) const; 87 virtual String itemToolTip(unsigned listIndex) const; 88 virtual String itemAccessibilityText(unsigned listIndex) const; 89 virtual bool itemIsEnabled(unsigned listIndex) const; 90 virtual PopupMenuStyle itemStyle(unsigned listIndex) const; 91 virtual PopupMenuStyle menuStyle() const; 92 virtual int clientInsetLeft() const; 93 virtual int clientInsetRight() const; 94 virtual int clientPaddingLeft() const; 95 virtual int clientPaddingRight() const; 96 virtual int listSize() const; 97 virtual int selectedIndex() const; 98 virtual void popupDidHide(); 99 virtual bool itemIsSeparator(unsigned listIndex) const; 100 virtual bool itemIsLabel(unsigned listIndex) const; 101 virtual bool itemIsSelected(unsigned listIndex) const; 102 virtual void setTextFromItem(unsigned listIndex); 103 virtual bool valueShouldChangeOnHotTrack() const { return true; } 104 virtual bool shouldPopOver() const { return !POPUP_MENU_PULLS_DOWN; } 105 virtual void valueChanged(unsigned listIndex, bool fireOnChange = true); 106 virtual void selectionChanged(unsigned, bool) {} 107 virtual void selectionCleared() {} 108 virtual FontSelector* fontSelector() const; 109 virtual HostWindow* hostWindow() const; 110 virtual PassRefPtr<Scrollbar> createScrollbar(ScrollableArea*, ScrollbarOrientation, ScrollbarControlSize); 111 112 #if ENABLE(NO_LISTBOX_RENDERING) 113 virtual void listBoxSelectItem(int listIndex, bool allowMultiplySelections, bool shift, bool fireOnChangeNow = true); 114 virtual bool multiple(); 115 #endif 116 117 virtual bool hasLineIfEmpty() const { return true; } 118 119 Color itemBackgroundColor(unsigned listIndex) const; 120 121 void createInnerBlock(); 122 void adjustInnerStyle(); 123 void setText(const String&); 124 void setTextFromOption(int optionIndex); 125 void updateOptionsWidth(); 126 127 RenderText* m_buttonText; 128 RenderBlock* m_innerBlock; 129 130 bool m_optionsChanged; 131 int m_optionsWidth; 132 133 int m_lastSelectedIndex; 134 135 RefPtr<RenderStyle> m_optionStyle; 136 137 RefPtr<PopupMenu> m_popup; 138 bool m_popupIsVisible; 139 }; 140 141 inline RenderMenuList* toRenderMenuList(RenderObject* object) 142 { 143 ASSERT(!object || object->isMenuList()); 144 return static_cast<RenderMenuList*>(object); 145 } 146 147 // This will catch anyone doing an unnecessary cast. 148 void toRenderMenuList(const RenderMenuList*); 149 150 } 151 152 #endif 153
